Check the listing for details. WOODRIVER Growth Chart Router Jig. Condition: New. Listed at 111.98 USD. WOODRIVER Growth Chart Router Jig, 180564, Machined from .30-thick acrylic, Calibrations are in 1-inch increments, Use with 3/8" Porter-Cable style router bushing and 1/4" router bit (sold separately), Includes master template, 6 number inserts, and edge locating pins, Build your own personalized growth chart using this WoodRiver jig – a modular router template to use with your favorite plunge router (3/8" router bushing and 1/4" router bit sold separately). Finished growth charts make great heirloom gifts to document and measure the progress as your children, or grandchildren, grow to maturity. Designed for use with 7-1/4"-wide board (sold separately). Includes master template, 6 number inserts, and edge locating pins. Calibrations are in 1-inch increments.